US 04,567,948 B2

GPTKB entity

Statements (69)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 06/740,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy gptkb:US_05,678,910_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2006-05-30
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1985-05-30
https://www.w3.org/2000/01/rdf-schema#label US 04,567,948 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate 1986-02-25
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
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gptkbp:patentFamily US_04,567,948_B2,_US_04,567,949_B2
gptkbp:patentType utility
gptkbp:priorityDate 1984-05-30
gptkbp:relatedTo gptkb:US_04,567,947_B2
gptkbp:status active
gptkbp:subclass energy efficiency